Railway car truck



July 14, 1942. fc. o. GuERNsEY RAILWAY CAR TRUCK Filed Dec. 50,` 1933 5Sheets-Sheet 1 S N mh. n m @A Nh c. o. GuERNsl-:Y

RAILWAY CAR TRUCK July 14, 1942.

5 Sheets-Sheet Filed Dec. 30, 1933 i15- Ef July 14, 1942. c. o.GUERNS'EY RAILWAY CAR TRUCK Filed Dec. 30, 1953 5 Sheets-Sheet 3 au fATTORNEY v July 14, 1942. c. o. GuERNsEY RAILWAY CAR TRUCK Filed Dec.30, 1933 5 Smets-Sheet 4 INVENTOR ATTORNEY JUY 14, 1942 c. o. GUERNsEY IRAILWAY CAR TRUCK Y m m m .m www. n w MQW. 2W -I d Filed Dec. 30; 1933Patented July 14, 1942 UNiTED sTATEs eaTENT OFFICE 2,289,423 RAILWAYCARl TRUCK Charles 0. Guernsey, Yeadon, Pa. Application December 30,1933A, Serial No. 704,612

(Cl. S-182) 17 Claims.

This invention relates generally to railway car trucks and has for oneobject a new and improved means for supporting the truck frame.

Another object of this invention is the provision of a new and improvedjournal box for railway car trucks.

Still another object of this invention is the provision of a railway cartruck in which the side and end frames thereof are supported by elasticmaterial which in service is subject to shearing action.

A further object of this invention is the provision of a new andimproved journal box mounting for railway car trucks. A

This invention also contemplates a journal box mounting includingelastic material which in service is subject to shearing action.

Another object of this invention is the provision of an electric railwaycar truck having a combined journal box and gear housing connected withthe truck frame through the medium of elastic material acting in shear.

The present invention also provides a railway car truck which is formedof relatively light material for the side and end frames, the side andend frames being supported by resilient members acting in shear.

A still further object of this invention is the provision of a railwaycar truck which is so formed that track noises and vibrations are nottransmitted to the side and end frames thereof.

Another object of this invention is the provision of a railway car truckthe side and end frames of which are resiliently supportedby elasticmaterial acting in shear whereby to reduce and substantially eliminatethe transmission of impact shocks from the wheels to said members.

Still another object of this invention is the provision of a railway cartruck the frame members of which are formed of relatively light materialso connected that there is substantially no metal to metal frictionalengagement of parts whereby to provide a truck which is substantiallysilent in operation and in which wear of the parts forming said truck isreduced to a minimum.

Other objects and advantages of this invention will be apparent from thefollowing description taken in conjunction with the accompanyingdrawings, in which:

Figure 1 is a fragmentary top plan View of a truck showing one form ofthe present inven tion;

Fig. 2 is a side elevation of the truc-k shown in Fig. 1;

Fig. 3 is an enlarged detail view of a portion of the truck shown inFigs. 1 and 2, the View being taken in the direction of the arrow, Fig.1;

Fig. 4 is a side elevation View of the combined journal box and gearhousing of the truck shown in Figs, 1 and 2, certain parts being brokenaway;

Fig. 5 is a sectional view on the line 5-5, Fig. 4;

Fig. 6 is a sectional view on the line 6-4 Fig. 4;

Fig. 7 is a detail sectional view of a portion of the truck showninFigs. 1 and 2, the View showing the connection of the combined gearhousing and journal box to the side frame; the View being taken on theline 1 1, Fig. 2;

Fig. 8' is a sectional View through the end frame of the truck shown inFigs. 1 and 2' showing the assembly of the end frame and spring cap, theView being taken on the line 8-f-8., Fig. 3;

Fig. 9 is a fragmentary top plan View of a modied form of truck;

Fig. 10 is a side elevation of the truck shown in Fig. 9, certain partsbeing broken away; and

Fig. 11 is a sectional View on the line lI--l I', Fig. 10.

Referring now more particularly to the drawings and with specificreference to the truck shown in Figs. 1 and 2, it can be seen that thetruck includes axles 2 which are arranged in journal boxes indicatedgenerally at B and are supported by wheels 4, the latter, in theinstance shown, comprising a split tread portion and conforming to thewheel shown in my co-pending application, Serial No. 704,611, filedDecember 30, 1933.

The disclosure of the specific type of wheels is merely by way ofexample as obviously the wheels may be of any preferred or desired form.One of the journal boxes for each axle comprises a combined reductiongear housing and journal box 6 while theopposi-te journal box does notinclude a gearhousing and is indicated in Fig. 1 at 8. i. y i

As more clearlyishown in Figs. 3 to 6, inclusive, the combined gearhousing and journal box B comprises a main' body portion lil which isopen at its lower end and provided with an attaching ange l2 tosecure abottom cover plate I4 by suitable iastenerssuoh as the bolts It.V Thebody portion l0 is so formed as to provide a housing for a reductiongear I8 secured to the axle 2 and arranged in meshing relation with apinion 20 arranged adjacent thereto and secured to the end portion'of adrive shaft 2`2 driven by a motor 24 supported by truck frame members inany suitable or desired manner. The body portion I6 is provided withoppositely arranged bosses 26 in which bearing assemblies 28 arearranged in which the axles 2 are rotatable. Surrounding the axles 2 andsecured to the bosses 26 are cover plates 36, all as clearly shown inFigs. 3 to 6, inclusive. The body portion I6 of the combined gearhousing and `journal box 6 is also provided with bearing assemblies 32in which the drive shaft 22 is rotatable, the bearing assemblies beingprotected by covers 34.

Formed at one end portion of the combined gear housing and journal box 6(the rear end portion), is a cup-shaped spring seat 36. The opposite endportion of the element 6 is formed to provide one portion 38 of aclampr48, the other portionof which is indicated at 42 and is connectedto portion 38 by suitable fasteners such as the bolts 44.

The truck of the present invention includes side and end frame members46 and 48, respectively, in the form of plates and as clearly shown inFig. 7 the clamp elements 38 and 42 held an annular bushing to whichrubber or other elastic material 52 in the form of an annulus isvulcanized, the rubber 52 being also vulcanized to a concentricallyarranged bushing 54 engaged with boss 56 extending through the sideframe 46 and welded to the latter as shown at 56. Clamped to theinternal bushing 54 by means of a bolt 66 extending therethrough andthrough boss 56 is a retainer 62 which serves to prevent rotation of thebushing 54 as will be obvious. In the form of the invention shown inFigs. l and 2 the combined gear housing and journal box 6 is arrangedadjacent the inner surface of the side frame 46 (see Fig. 1) and thesupport therefor as shown in Fig. '7 projects inwardly of the side frame46.

The truck frame includes the before-mentioned side and end frame members46 and 48, the former having a depending portion 64 between the wheels 4and provided with an enlarged central opening 66 through which thebolster 68 projects as more clearly shown in Figs. 1 and 2. The bolsteris supported by suitable springs 16 and a side bearing in the form of aroller 12 is provided which is supported on a pin 14. Inasmuch as thepresent invention is directed primarily to the truck frame and thesupporting of the journal boxes and combined gear housing and journalboxes no further description of the bolster supporting arrangement isbelieved to be necessary.

As clearly shown in Fig. 1 the end portions of the end frames 48 areanged as at 16 and secured to the end portions of the side frames 46 bysuitable fasteners 18. The truck frame members are supported by means ofsprings 86 interposed between the spring seats 36 and spring caps 82,the spring caps on opposite sides of said truck frame being connected;in the instance shown the connection comprising an angle 84 welded tothe spring caps 82 at 86 and having a retainer 88 welded to the edgeportion of the horizontal ilange of the angle as shown at 98, theretainer 88 and the vertical flange of the angle 84 providing a guidingchannel at each end portion of the connection 84 into which a generallyresilient end frame supporting member E extends to bear upon thehorizontal flange of the connectionv84.

As shown more clearlyin Fig. 8 the supporting member E comprises innerand outer U-shaped gegane plates 92 and 94, respectively, between whichare rubber strips 96 or other suitable elastic material. In practice therubber 96 is vulcanized or otherwise secured to the channels 92 and 94.The inner channel 92 receives the end frame 48 and is connected to thelatter by suitable fasteners such as the rivet 68. In practice the innerchannel 92 closely ts the end frame member 48 as clearly shown in Fig.8.

While the drawings illustrate the connection between opposite springcaps 82 as comprising an angle it will be apparent that within thespirit of the present invention a channel member may be used forconnecting the caps 82 and thus eliminate the necessity for welding aseparate piece such as 88 to form the guiding channel for the end framesupporting element E.

At the opposite end of the-axle 2 from that at which the combined gearhousing and journal box is provided the journal box is not combined witha gear housing but comprises only the body portion |66; the remainingelements of the journal box being similar to those describedhereinbefore and hence bearing the same reference characters.

Referring now to the form of the invention shown in Figs. 9 to 11,inclusive, the axles 2 are driven through double reduction gearing |02which is so formed as to provide a combined gear housing and journalbox. In this form of the invention the body portion of the combinedjournal box and gear housing is provided with a spring seat |64 andinterposed between said spring seat and a spring cap |66 is a coilspring |68. The side and end frames in the form of the invention shownin Figs. 9 to 1l are indicated at ||0 and ||2, respectively, the latterbeing flanged as at ||4 and connected at ||6 to the side frames. In thisform of the invention the side frames project beyond the end frames asindicated by portions I8 and for supporting the truck frame on springs|68, inner and outer U-shaped members |26 and |22 are provided betweenwhich is rubber or other elastic material |24 vulcanized to each of saidU-shaped members in a manner similar to that shown and described withreference to Fig. 8. The projecting portions ||8 of side frames ||6 arefitted in the inner U-shaped members |22 and are connected thereto bysuitable fasteners such as the rivets |26. The combined inner and outerU- shaped members and the rubber vulcanized thereto constitute thesupporting means for the truck frame members and as clearly shown inFig. 10 they rest upon the spring caps |66, the latter being providedwith retaining flanges |28 which extend upwardly along opposite sides ofthe outer U-shaped member |20 as shown in Fig. 9. In this form of theinvention the journal box is resiliently connected at its opposite endportion to the outer side of the side frame member ||6 as shown clearlyin Figs. 9 and 1l. The means which resiliently clamp the journal box tothe side frame member H6 is very similar to that shown and describedwith reference to Fig. 7 and hence the same reference characters areapplied. However, in the form of the invention shown more clearly inFig. 11 the clamp comprises upper and lower members |36 and |32,respectively, the latter being formed integral with the journal box andthe clamp being, in reality, split horizontally. The boss in Fig. 11 isindicated at |34 extending through the side frame IU from the outer sidethereof and being welded to said side frame as shown at |36. The boss ishollow and is provided with a head portion |38 by which the retainer |40is secured in clamping engagement with the inner bushing 54 by means ofa bolt |42.

From the above description it can be seen that the truck framecomprising the side and end members 46 and 48, Fig. ,1, vor H0 and H2,vof Fig. 9, is supported by elements which are, in effect, leverconstructions. In the construction shown in Figs. l and 2 each levercomprises a main body portion constituting a journal box. in oneinstance and a combined gear housing and journal box in the otherinstance, one end portion of the lever being resiliently connected tothe side frame by means including an elastic medium in shear, and theopposite end of the lever being provided with a resilient element suchas a spring for supporting the frame members. t is to be noted that inservice movement of the truck frame relative to the wheels is resistedby rubber or other elastic material acting in shear. Any movement of thejournal box relative to the frame is resisted on one side of the axle bythe rubber bushing 52 and on the other side by the coil spring andrubber element with the rubber loaded in shear. `It is., of course,obvious that the coil spring and the rubber elements connecting thespring cup to the truck frame have different physical and springingcharacteristics. These features result in the provision of a railway cartruck which is substantially silent in service. The truck frame members,because of the specic mountings of rubber, may be and preferably are ofrelatively light material; the provision of rubber in shear cushioningthe truck frame while in service.

It will further be apparent to those skilled in the art that the elasticmeans which connect the journal box to the side frame is not only inshear but is also in compression. In acceleration and deceleration ofthe car it will be obvious that the elastic material 52 is lplaced undercompression, in acceleration on one side of the fastening element whichconnects the inner bushing to the side frame and in deceleration on theopposite side. It will still further be apparent that the weight of thecar will also place the elastic material 52 in compression verticallyand upon rounding a curve the elastic material 52 will be in compressiontransversely of the car. All of the above occurs while the elasticmaterial 52 is in shear circumierentially.

The drawings herein illustrate certain embodiments of the invention butit is to be understood that the drawings are for illustrative purposesonly and Various changes in the form and proportions of theconstructions may be made within the scope of the appended claimswithout departing from the spirit of the invention.

What is claimed is:

1. In a railway car truck, a frame comprising connected side and endmembers, journal boxes connected to the side members and having springseats, springs in said seats, and means supporting the frame on saidsprings including elastic material so arranged as to be subject toshearing action in service.

2. In a railway car truck, a frame comprising side and end members,journal boxes, means connecting the journal boxes to the side memberscomprising elastic material so arranged as to be subject to shearingaction in service, spring seats formed with the journal boxes, springsin said seats, and means for supporting the frame on said springscomprising elastic material so arranged as to be subject to shearingaction in service.

3. Ill a railway car truck, a frame comprising side .and end members,and means for supporting said frame comprising wheels, axles supportedby the wheels, and elongated journal box structures for said axleshaving one end portion thereof connected to the side members through themedium of elastic material in shear `and the opposite end portion formedto provide a spring seat, and a plurality of resilient means havingdifferent characteristics and being interposed be.- tween the frame andspring seat and Vsupported by the latter.

4. A railway car truck comprising Wheels and axles and a frame havingside and end members, and lever means for supporting said frame uponsaid wheels and axles and having one end portion located on one side ofthe axle and resiliently connected to the frame by elastic materialacting in shear and its opposite end portion located on the other sideof theaxle and underlying the frame, and resilient means interposedbetween said opposite end portion and vfralrleand on which said frame issupported.

5. In a railway car truck, a Aframe comprising connected side and endmembers, and means for supporting the frame comprising a lever having acentral body portion and oppositely extending end portions, said bodyportion constituting a combined gear housing and journal box, .one ofsaid oppositely extending end portions being connected to the adjacentside member by elastic material acting in shear and the other oppositelyextending end portion having a spring seat formed therewith, and aplurality of resilient means having different characteristics and beinginterposed vbetween the frame and spring seat and supported by thelatter.

6. In a railway car truck, a frame comprising connected side and endmembers, wheels, axles supported by the wheels, and means for supportingthe frame comprising a journal box connected to a side member byelasticv material in shear, said journal box having a spring seat, aspring supported in said seat, and a resilient member including elasticmaterial in shear connected to the end member of the frame and restingon the spring.

7. In a railway car truck, a frame including side and end members, ajournal box formed with an extension positioned under said end memberand including a spring support, a spring in said support, and elasticnaterial connecting the spring and the frame and acting in shear tosupport the same.

8. In a railway car truck, a frame including side and end members,journal boxes each formed with spring supporting extremities positionedbeneath said end members, springs supported by said extremities, elasticelements carried by said springs and supporting the frame, and meansextending between and connecting the elastic elements located atdirectly opposite sides of the truck.

9. In a railway car truck, a frame comprising connected side and endmembers, journal boxes having extensions forming spring seats, springsin said seats, caps on said springs, means connecting said spring caps,and a resilient connection between the connecting means and the frame.

10. In a railway car truck, a frame comprising connected side and endmembers, journal boxes having extensions forming spring seats, springsin said seats, caps on said springs, means for connecting the caps tosaid frame including U- shaped members supported by each of said capsand enclosing portions of said frame, and elastic elements interposedbetween the U-shaped member and frame.

11. In a railway car truck, a frame comprising connected side and endmembers, journal bofxes having extensions forming spring seats, springsin said seats, caps on said springs, U- shaped members supported by eachof said caps and enclosing portions of said frame, and elastic materialinterposed between the U-shaped member and the frame and so arranged asto be subject to shearing action in service.

12. In a railway car truck, a frame comprising side and end members,means for supporting said frame comprising wheels, axles supported lbysaid wheels, an elongated journal box structure for each of saidexleshaving one end portion thereof fixed toa side member through themediumof` elastic'material in shear, and a plurality of resilient meanshaving different characteristics and spacing the opposite end portionfrom said frame. Y Y

13. In a yrailway car truck, a frame comprising side and endmembers'means for supporting 4said frame comprising wheels, axlessupported bysaid wheels, an'elongated journal box structure for each ofsaid axles having one end portion thereof fixed to a side member throughthe medium of elastic material in shear, a spring supported by theopposite end portionkbeneath 'said frame, and resilient means betweensaid vspring and said frame. Y 14. In arailway car truck, a framecomprising side andend members, means for` supporting said framecomprising wheels, axles supported by the wheels, elongated journal boxstructures enclosing portions of said axles, one end of each of saidjournal box structures beingv xed to said frame through the medium ofelastic material in shear, and the opposite end portions includingspring supporting surfaces, springs mounted on said supporting surfaces,caps enclosing the upper portions of said springs, and resilient meansconnecting said caps with said frame.

15. In a railway car truck, a frame comprising side and end members,means for supporting said frame including wheels, axles supported by thewheels, a journal box structure bearing on an axle and having an armextending to one side thereof, a rubber annulus detachably fixed to saidframe on the side thereof, and a clamp carried by said journal box armfor securing same to said rubber annulus.

16. In a railway car truck, a frame comprising side and end members,means for supporting said frame including wheels, axles supported bysaid wheels, a journal box .bearing on an axle and having an armextending to one side thereof and overlapping aside of the frame, arubber mem# ber fixed to the side of said frame and projecting laterallytherefrom, a clamp carriedby voneV extremity of said journal box forsecuring sameV to said rubber member, and resilient means interposedbetween the opposite end of said journal box structure and said frame.

17. In a railway car truck, a frame comprising side and end members,means for supporting said frame including wheels, axles supported byYsaid wheels, an elongated journal box, a rubber member xed to saidframe, a clamp carried by one extremity of said journal box for securingsame to said rubber member, and means connecting the opposite end of thejournal box with the frame including a spring supported by the journalbox, a cap enclosing the upper end of Vsaid spring and a resilientconnection between the cap and said frame.

CHARLES o. GUERNs'EY;

